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/*
This file is part of TALER
Copyright (C) 2022 Taler Systems SA
TALER is free software; you can redistribute it and/or modify it under the
terms of the GNU General Public License as published by the Free Software
Foundation; either version 3, or (at your option) any later version.
TALER is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
TALER; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
*/
/**
* @file backenddb/pg_account_kyc_get_status.c
* @brief Implementation of the account_kyc_get_status function for Postgres
* @author Iván Ávalos
*/
#include "platform.h"
#include <taler/taler_error_codes.h>
#include <taler/taler_dbevents.h>
#include <taler/taler_pq_lib.h>
#include "pg_account_kyc_get_status.h"
#include "pg_helper.h"
/**
* Closure for kyc_status_cb().
*/
struct KycStatusContext
{
/**
* Function to call with results.
*/
TALER_MERCHANTDB_KycCallback kyc_cb;
/**
* Closure for @e kyc_cb.
*/
void *kyc_cb_cls;
/**
* Filter, NULL to not filter.
*/
const struct TALER_MerchantWireHashP *h_wire;
/**
* Filter, NULL to not filter.
*/
const char *exchange_url;
/**
* Number of results found.
*/
unsigned int count;
/**
* Set to true on failure(s).
*/
bool failure;
};
/**
* Function to be called with the results of a SELECT statement
* that has returned @a num_results results about accounts.
*
* @param[in,out] cls of type `struct KycStatusContext *`
* @param result the postgres result
* @param num_results the number of results in @a result
*/
static void
kyc_status_cb (void *cls,
PGresult *result,
unsigned int num_results)
{
struct KycStatusContext *ksc = cls;
for (unsigned int i = 0; i < num_results; i++)
{
struct TALER_MerchantWireHashP h_wire;
uint64_t kyc_serial;
char *exchange_url;
char *payto_uri;
struct GNUNET_TIME_Timestamp last_check;
bool kyc_ok;
uint32_t aml_decision;
struct GNUNET_PQ_ResultSpec rs[] = {
GNUNET_PQ_result_spec_auto_from_type ("h_wire",
&h_wire),
GNUNET_PQ_result_spec_uint64 ("exchange_kyc_serial",
&kyc_serial),
GNUNET_PQ_result_spec_string ("payto_uri",
&payto_uri),
GNUNET_PQ_result_spec_string ("exchange_url",
&exchange_url),
GNUNET_PQ_result_spec_timestamp ("kyc_timestamp",
&last_check),
GNUNET_PQ_result_spec_bool ("kyc_ok",
&kyc_ok),
GNUNET_PQ_result_spec_uint32 ("aml_decision",
&aml_decision),
GNUNET_PQ_result_spec_end
};
if (GNUNET_OK !=
GNUNET_PQ_extract_result (result,
rs,
i))
{
GNUNET_break (0);
ksc->failure = true;
return;
}
if ( (NULL != ksc->exchange_url) &&
(0 != strcmp (ksc->exchange_url,
exchange_url)) )
{
GNUNET_PQ_cleanup_result (rs);
continue;
}
if ( (NULL != ksc->h_wire) &&
(0 != GNUNET_memcmp (ksc->h_wire,
&h_wire)) )
{
GNUNET_PQ_cleanup_result (rs);
continue;
}
ksc->count++;
ksc->kyc_cb (ksc->kyc_cb_cls,
&h_wire,
kyc_serial,
payto_uri,
exchange_url,
last_check,
kyc_ok,
(enum TALER_AmlDecisionState) aml_decision);
GNUNET_PQ_cleanup_result (rs);
}
}
enum GNUNET_DB_QueryStatus
TMH_PG_account_kyc_get_status (void *cls,
const char *merchant_id,
const struct TALER_MerchantWireHashP *h_wire,
const char *exchange_url,
TALER_MERCHANTDB_KycCallback kyc_cb,
void *kyc_cb_cls)
{
struct PostgresClosure *pg = cls;
struct KycStatusContext ksc = {
.kyc_cb = kyc_cb,
.kyc_cb_cls = kyc_cb_cls,
.exchange_url = exchange_url,
.h_wire = h_wire
};
struct GNUNET_PQ_QueryParam params[] = {
GNUNET_PQ_query_param_string (merchant_id),
GNUNET_PQ_query_param_end
};
enum GNUNET_DB_QueryStatus qs;
check_connection (pg);
PREPARE (pg,
"lookup_kyc_status",
"SELECT"
" h_wire"
",exchange_kyc_serial"
",payto_uri"
",exchange_url"
",kyc_timestamp"
",kyc_ok"
",aml_decision"
" FROM merchant_instances"
" JOIN merchant_accounts"
" USING (merchant_serial)"
" JOIN merchant_kyc"
" USING (account_serial)"
" WHERE merchant_instances.merchant_id=$1");
qs = GNUNET_PQ_eval_prepared_multi_select (pg->conn,
"lookup_kyc_status",
params,
&kyc_status_cb,
&ksc);
if (ksc.failure)
{
GNUNET_break (0);
return GNUNET_DB_STATUS_HARD_ERROR;
}
if (0 > qs)
return qs;
return ksc.count;
}
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